A TEACHER GAVE 5g of salt to two students for some experiment and ask them to weigh it.the results for measurement are:-STUDENT1 4.5 AND 4.6
STUDENT24.9 AND 5.0
find the value of precision and accuracy in both the cases.

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Solution

For student 1:
Precision =
5-4.5 = 0.5
5-4.6 = 0.4
None of the both readings is accurate.

For student 2:
Precision=
5-4.9 =0.1
5-5 =0 This one is accurate reading.

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Similar questions

If the true value for a result is 2.00 g and a student takes 2 measurements and reports the results as 1.95 g and 1.93 g, then we can conclude that:

Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements

$\begin{matrix} S t u d e n t s & R e a d i n g (i) & (i i) A & 3.01 & 2.99 B & 3.05 & 2.95 \end{matrix}$

(a) Results of both the students are neither accurate, nor precise

(b) Results of students A are both precise and accurate

(d) Results of student B are both precise and accurate

Q. Two students are working on an AP Chemistry lab. Their assignment is to determine experimentally the density of a nonvolatile organic liquid, limestone. The accepted value for the density of limestone is

0.8422 g / m L

. Each student conducts three separate density determinations, then calculates a mean (average) value for the density and the standard deviation for their three trials.

	Student A	Student B
Density # $1$	$0.8421 g / m L$	$0.8408 g / m L$
Density # $2$	$0.8514 g / m L$	$0.8502 g / m L$
Density # $3$	$0.8355 g / m L$	$0.8332 g / m L$
Mean Density	$0.8430 g / m L$	$0.8414 g / m L$
Standard Deviation	$0.0080$	$0.0085$

The results and calculations for each students are shown in the table below.
Of the four descriptions given below, which BEST interprets the accuracy and precision of Student A and Student B?

Q. Assertion :In the measurement of physical quantities direct and indirect methods are used. Reason: The accuracy and precision of measuring instruments along with errors in measurements should be taken into account, while expressing the result.

If the true value for a result is 3.00 m and a student records two readings as 3.01 m and 2.99 m, then we can conclude that:

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A TEACHER GAVE 5g of salt to two students for some experiment and ask them to weigh it.the results for measurement are:-STUDENT1 4.5 AND 4.6 STUDENT24.9 AND 5.0find the value of precision and accuracy in both the cases.

For student 1:Precision = 5-4.5 = 0.55-4.6 = 0.4None of the both readings is accurate. For student 2:Precision=5-4.9 =0.15-5 =0 This one is accurate reading.

A TEACHER GAVE 5g of salt to two students for some experiment and ask them to weigh it.the results for measurement are:-STUDENT1 4.5 AND 4.6
STUDENT24.9 AND 5.0
find the value of precision and accuracy in both the cases.

For student 1:
Precision =
5-4.5 = 0.5
5-4.6 = 0.4
None of the both readings is accurate.

For student 2:
Precision=
5-4.9 =0.1
5-5 =0 This one is accurate reading.